I'm facing the same issue since some days. The workarounds didn't work for me.
I am unable to archive the project for release:
error: Resource "/Users/cedricjung/Library/Developer/Xcode/DerivedData/decouverto-asvavlxsbksyvhgovxmjpnlracmz/Build/Intermediates.noindex/ArchiveIntermediates/decouverto/BuildProductsPath/Release-iphoneos/React-Core/AccessibilityResources.bundle" not found. Run 'pod install' to update the copy resources script.
You can check all source code there.
I'm using react-native v0.63.3.
I'm new in iOS development even if I use react-native since 3 years.
Thank you for your help. :)